Atomic number: 52
Atomic mass: 127.60
Protons- 52
Electrons- 52
Neutrons- 76
Period: 5
Group: 16
Melting point: 449.51 (degrees Celsius)
Boiling point: 988 (degrees Celsius)
State: solid
Density: 6.24 (g/cc)
Metalloid
Colour: silvery
Dicovered by: Franz Joseph Muller von Reichstein
When it was discovered: 1783
Where it was discovered: Romania
How it was discovered: in mines found in gold ores
Flammable: yes, will burn with oxygen
Reactions with other things:
-reacts with fluorine and burns to form hexafluoride tellurium (VI) fluoride
-reacts with fluorine mixed with nitrogen gas at 0 (degrees Celsius) to form tetrafluoride tellurium (IV) fluoride
-under controlled conditions tellurium also reacts with other halogens: chlorine, bromine and iodine to form tetreahalides tellurium (IV) chlrode, tellurium (IV) bromine, and tellurium (IV) iodine (requires heating).
- Does not react with dilute non-oxidizing acids
-does not react with water under normal conditions
Interesting Facts
- the name originates from the Greek word "tellus" meaning Earth
-Common Uses Of Tellurium
-Ceramics
_colouring of glass
-thermoelectric devices
Atomic mass: 127.60
Protons- 52
Electrons- 52
Neutrons- 76
Period: 5
Group: 16
Melting point: 449.51 (degrees Celsius)
Boiling point: 988 (degrees Celsius)
State: solid
Density: 6.24 (g/cc)
Metalloid
Colour: silvery
Dicovered by: Franz Joseph Muller von Reichstein
When it was discovered: 1783
Where it was discovered: Romania
How it was discovered: in mines found in gold ores
Flammable: yes, will burn with oxygen
Reactions with other things:
-reacts with fluorine and burns to form hexafluoride tellurium (VI) fluoride
-reacts with fluorine mixed with nitrogen gas at 0 (degrees Celsius) to form tetrafluoride tellurium (IV) fluoride
-under controlled conditions tellurium also reacts with other halogens: chlorine, bromine and iodine to form tetreahalides tellurium (IV) chlrode, tellurium (IV) bromine, and tellurium (IV) iodine (requires heating).
- Does not react with dilute non-oxidizing acids
-does not react with water under normal conditions
Interesting Facts
- the name originates from the Greek word "tellus" meaning Earth
-Common Uses Of Tellurium
-Ceramics
_colouring of glass
-thermoelectric devices
Image of Tellurium
http://www.google.ca/url?sa=i&rct=j&q=tellurium&source=images&cd=&cad=rja&docid=IGMiaUuo9RS9tM&tbnid=fQ-xPK1hj_7vrM:&ved=0CAUQjRw&url=http%3A%2F%2Fperiodictable.com%2FElements%2F052%2Findex.html&ei=c-Q0Uau8E4GA0AGq84DIDA&bvm=bv.43148975,d.dmQ&psig=AFQjCNG7x5vQ6OG4M_PEXrNb9z44CbNRWg&ust=1362507209375730
Helpful Websites
http://www.webelements.com/tellurium/
http://www.facts-about.org.uk/science-element-tellurium.htm